Home / 431,082,005.10-646,623,007.65-201,074,340.30

Finding the Fourth Proportional to 431,082,005.10, 646,623,007.65 and 201,074,340.30

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Solution

The fourth proportional to 431,082,005.10, 646,623,007.65 and 201,074,340.30 is: 301,611,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,082,005.10 : 646,623,007.65 = 201,074,340.30 : x
  2. Step 2: Convert to fraction form
    431,082,005.10/646,623,007.65 = 201,074,340.30/x
  3. Step 3: Cross multiply
    431,082,005.10x = 646,623,007.65 × 201,074,340.30
  4. Step 4: Simplify right side
    431,082,005.10x = 130,019,294,686,025,600
  5. Step 5: Solve for x
    x = 130,019,294,686,025,600/431,082,005.10
  6. Step 6: Final answer
    x = 301,611,510.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.